java, javafx, android and spring programing collection

Visitor Count: 4204

java standard edition

addObject arraylist bufferedreader colors comparator createTable datatypes date enum generateHTML hashmap inheritance insertSQL interface JSONfromWEB jsoup list loop pointMatrix queue readCSV regex sqlToObject stack static super treemap updateTable writeCSV

java FX

3DCharacterMoving 3DMaterialList DroneMotor FlowPane Hello KeyCode KeyMovement ObservableList Pane RotateImage rotateSphere

android

APIview listview ToastTimer touchMovement WriteReadFile

spring framework

HelloWorld RESTful TomcatServlet

java objects

Apple

RESTful new update!2022-06-23 04:41:22

tags: spring view source

Apple 2022-06-18 05:20:23

a object of a apple lol

tags: object view source

ObservableList 2022-06-17 21:24:43

tags: fx observablelist lessons view source

TomcatServlet 2022-06-17 07:51:58

tags: spring tomcat view source

HelloWorld 2022-06-17 07:51:52

tags: spring helloworld view source

touchMovement 2022-06-17 07:51:32

tags: android transition view source

WriteReadFile 2022-06-17 07:51:21

tags: android file view source

ToastTimer 2022-06-17 07:51:17

tags: android toast view source

KeyMovement 2022-06-17 07:51:04

tags: fx keycode view source

KeyCode 2022-06-17 07:50:57

tags: fx keycode view source

loop 2022-06-17 07:50:45

tags: se loop view source

queue 2022-06-17 07:50:23

tags: se serialize view source

list 2022-06-17 07:50:18

tags: se serialize view source

treemap 2022-06-17 07:49:59

tags: se serialize view source

stack 2022-06-17 07:49:53

tags: se serialize view source

readCSV 2022-06-17 07:49:11

tags: se file view source

regex 2022-06-17 07:49:05

tags: se regex view source

sqlToObject 2022-06-17 07:48:57

tags: se.oop view source

Pane 2022-06-17 07:48:48

tags: fx pane view source

FlowPane 2022-06-17 07:48:41

tags: fx pane view source

RotateImage 2022-06-17 07:48:25

tags: fx transition view source

rotateSphere 2022-06-17 07:47:56

tags: fx oop.3D view source

DroneMotor 2022-06-15 18:15:45

drone motor control simulator

tags: fx view source

enum 2022-06-15 04:12:41

Java enums are variable types with fixed possible values. They are used for readability and the logical structure of your code.

tags: se oop view source

date 2022-06-15 04:09:31

add a Object with title and date to a linkedlist

tags: se oop list view source

datatypes 2022-06-15 04:08:23

java datatypes

tags: se view source

createTable 2022-06-15 04:08:14

create a sql table in java

tags: se sql view source

comparator 2022-06-15 04:07:47

compare date and sort from list collection

tags: se oop comparator date collection list view source

bufferedreader 2022-06-15 04:05:48

use bufferdreader and filereader for reading a text file

tags: se file bufferedreader filereader view source

colors 2022-06-15 03:00:11

use color in with text and text background in terminal

tags: se view source

addObject 2022-06-15 02:57:22

add a Object to a Object List

tags: se oop view source

arraylist 2022-06-15 02:54:10

add,remove and contains Strings to a arraylist

tags: se array view source

3DMaterialList 2022-06-14 17:34:03

tags: fx oop 3D view source

3DCharacterMoving 2022-06-14 17:33:59

tags: fx oop 3D view source

updateTable 2022-06-14 16:46:08

tags: se view source

writeCSV 2022-06-14 16:46:07

tags: se view source

static 2022-06-14 16:46:00

tags: se view source

super 2022-06-14 16:45:59

tags: se view source

pointMatrix 2022-06-14 16:45:57

tags: se view source

Hello 2022-06-14 16:45:47

tags: fx view source

APIview 2022-06-14 16:45:14

tags: android view source

listview 2022-06-14 16:45:06

tags: android view source

jsoup 2022-06-14 16:44:40

tags: se web maven view source

interface 2022-06-14 16:44:18

tags: se oop view source

insertSQL 2022-06-14 16:44:07

tags: se sql view source

hashmap 2022-06-14 16:43:34

tags: se oop view source

inheritance 2022-06-14 16:43:17

tags: se oop view source

generateHTML 2022-06-14 16:43:08

tags: se web view source

JSONfromWEB 2022-06-13 18:16:48

read JSON from web into a java program

tags: se json maven view source

comparator

screenshot

description

source code

import java.util.Date;
import java.text.SimpleDateFormat;
import java.util.Objects;
import java.util.LinkedList;
import java.util.List;
import java.util.Comparator;
import java.text.ParseException;
import java.util.Collections;

public class Main
{
	public static void main(String args[]) throws Exception
	{
		List<Obst> liste = new LinkedList<>();
		
		liste.add(new Obst("31/05/1998", "banane", 4.00));
		liste.add(new Obst("22/12/1998", "banane", 4.00));
		liste.add(new Obst("25/12/1998", "banane", 4.00));
		liste.add(new Obst("24/02/1998", "banane", 4.00));
		liste.add(new Obst("01/10/1990", "banane", 4.00));
		liste.add(new Obst("07/09/1991", "banane", 4.00));
		
		Collections.sort(liste, Obst.ObstComparators);
		Obst.verfallsdatumAnzeigen(liste);
	}
}

class Verfallsdatum
{
	String datum;
	Verfallsdatum(String datum)
	{
		this.datum = Objects.requireNonNull(datum," datum can not be null");
	}
	
	public String getDatum()
	{
		return datum;
	}
	
	
	public static Comparator<Obst> ObstComparators = new Comparator<Obst>() 
	{
		public int compare(Obst obst1, Obst obst2) 
		{
			Date a = null;
			Date b = null;
		   
			try 
			{
				a = new SimpleDateFormat("dd/MM/yyyy").parse(obst1.getDatum());  
				b = new SimpleDateFormat("dd/MM/yyyy").parse(obst2.getDatum());
			} 
			catch (ParseException e) 
			{
				System.err.println("leck eier");
			}
			
			return a.compareTo(b);	
		}
	};
	
	
	public static void verfallsdatumAnzeigen(List<Obst> liste) throws Exception
	{
		for (Obst obst : liste)
		{
			String sDate = obst.getDatum();
			Date date = new SimpleDateFormat("dd/MM/yyyy").parse(sDate);  
    
			System.out.println(obst.getBezeichnung() +" "+obst.getDatum());
		}
	}	
}

class Obst extends Verfallsdatum
{
	String bezeichnung;
	double gewicht;
	
	Obst(String datum, String bezeichnung, double gewicht)
	{
		super(datum);
		this.bezeichnung = Objects.requireNonNull(bezeichnung, "weight can not be null!");
		this.gewicht = Objects.requireNonNull(gewicht, "weight can not be null!");
	}
	
	public String getBezeichnung()
	{
		return bezeichnung;
	}
	
}